Convert ITRF2000 to NAD83(CSRS)v4

Convert coordinates from ITRF2000 (EPSG:4919) to NAD83(CSRS)v4 (EPSG:8242) — official EPSG transformation parameters, accuracy and area of use, with a free in-browser converter.

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Input (x, y)

Output (x, y)

Direct link to this transformation: epsgtransform.com/transform/epsg-4919-to-epsg-8242

Official EPSG transformation from ITRF2000 to NAD83(CSRS)v4

The EPSG Geodetic Parameter Dataset defines 1 transformation between ITRF2000 (EPSG:4919) and NAD83(CSRS)v4 (EPSG:8242). Its parameters, accuracy and area of use are listed below.

ITRF2000 to NAD83(CSRS)v4 (1)

EPSG:8261±0 m

Method:: Time-dependent Position Vector tfm (geocentric)
Area of use:: Canada
Scope:: Geodesy. Defines NAD83(CSRS)v4.

Parameter	Value	Unit
X-axis translation(tx)	0.9956	metre
Y-axis translation(ty)	-1.9013	metre
Z-axis translation(tz)	-0.5214	metre
X-axis rotation(rx)	-25.915	milliarc-second
Y-axis rotation(ry)	-9.426	milliarc-second
Z-axis rotation(rz)	-11.599	milliarc-second
Scale difference(ds)	0.615	parts per billion
rate tx	0.0007	metres per year
rate ty	-0.0007	metres per year
rate tz	0.0005	metres per year
rate rx	-0.067	milliarc-seconds per year
rate ry	0.757	milliarc-seconds per year
rate rz	0.051	milliarc-seconds per year
rate ds	-0.182	parts per billion per year
epoch	1997	year

Concatenation of joint Canada-US NAD83>ITRF96 tfm (code 8259) with IGS value of ITRF96>ITRF97 and IERS tfm ITRF97>ITRF2000. Scale difference in ppb and scale difference rate in ppb/yr where 1/billion = 1E-9 or nm/m. See tfm code 6866 for US equivalent.

Convert EPSG:4919 to EPSG:8242 in code

The same transformation with common GIS tools and libraries:

from pyproj import Transformer

transformer = Transformer.from_crs("EPSG:4919", "EPSG:8242", always_xy=True)
x, y = transformer.transform(-73.9857, 40.7484)
print(x, y)

Source: EPSG:4919 — ITRF2000

geocentric Cartesian system (Earth-centred Earth-fixed) · Area of use: World

+proj=geocent +ellps=GRS80 +units=m +no_defs +type=crs

More about EPSG:4919 →

Target: EPSG:8242 — NAD83(CSRS)v4

geocentric Cartesian system (Earth-centred Earth-fixed) · Area of use: Canada

+proj=geocent +ellps=GRS80 +units=m +no_defs +type=crs

More about EPSG:8242 →

Frequently asked questions

How accurate is converting ITRF2000 to NAD83(CSRS)v4?: The most accurate official EPSG transformation between these systems is accurate to about ±0 m within its stated area of use. Browser-based converters approximate datum shifts with Helmert parameters; for surveying-grade work apply the official transformation in a desktop GIS.
Does my data leave the browser when I use this converter?: No. All coordinate transformations are computed locally in your browser using proj4js. The coordinates you enter are never transmitted to any server.

Need the reverse? Convert EPSG:8242 to EPSG:4919 →